Bug#1064368: python-xarray: intermittent segfault in test_open_mfdataset_manyfiles[netcdf4-20-True-*-5]

[Rebecca N. Palmer]

Package: python3-xarray
Version: 2023.12.0-3

xarray sometimes (~10% of the time) segfaults in 
tests/test_backends.py::test_open_mfdataset_manyfiles, usually 
[netcdf4-20-True-None-5] but sometimes [netcdf4-20-True-5-5].

This has happened in both Python 3.11 and 3.12, and on various 
architectures:
https://ci.debian.net/packages/p/python-xarray/testing/amd64/43068287/
https://ci.debian.net/packages/p/python-xarray/testing/armhf/42545225/
https://ci.debian.net/packages/p/python-xarray/testing/s390x/43076980/
https://ci.debian.net/packages/p/python-xarray/testing/ppc64el/42673240/